18123380

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^2\times {\mathrm{7489}}^1$

素因数の和:7520

約数の個数: 36

約数和(自身を含む): 41839140

約数和(自身を除く): 23715760

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 121, 220, 242, 484, 605, 1210, 2420, 7489, 14978, 29956, 37445, 74890, 82379, 149780, 164758, 329516, 411895, 823790, 906169, 1647580, 1812338, 3624676, 4530845, 9061690, 18123380]

約数ペア:

[(1, 18123380), (2, 9061690), (4, 4530845), (5, 3624676), (10, 1812338), (11, 1647580), (20, 906169), (22, 823790), (44, 411895), (55, 329516), (110, 164758), (121, 149780), (220, 82379), (242, 74890), (484, 37445), (605, 29956), (1210, 14978), (2420, 7489)]